EP 0401493 A3 19920226 - REMOVAL OF UNSATURATED CARBON COMPOUNDS FROM 1,1-DICHLORO-1-FLUOROETHANE
Title (en)
REMOVAL OF UNSATURATED CARBON COMPOUNDS FROM 1,1-DICHLORO-1-FLUOROETHANE
Publication
Application
Priority
US 36273089 A 19890607
Abstract (en)
[origin: EP0401493A2] Liquid 1,1-dichloro-1-fluoroethane containing contaminating unsaturated carbon compounds is treated with chlorine and ultraviolet light to convert the unsaturated contaminants to photochlorination products. The photochlorination products are thereafter separated from 1,1-dichloro-1-fluoroethane, such as by distillation. The process is particularly useful in separating vinylidene chloride from 1,1-dichloro-1-fluoroethane.
IPC 1-7
IPC 8 full level
C07C 17/04 (2006.01); B01J 19/12 (2006.01); C07C 17/38 (2006.01); C07C 17/395 (2006.01); C07C 19/08 (2006.01); C07C 19/12 (2006.01)
CPC (source: EP US)
B01J 19/123 (2013.01 - EP US); C07C 17/38 (2013.01 - EP US); C07C 17/395 (2013.01 - EP US)
Citation (search report)
- [A] GB 627773 A 19490816 - JAMES CHAPMAN, et al
- [A] US 2894044 A 19590707 - PRILL ERHARD J
- [A] EP 0003147 A1 19790725 - SOLVAY [BE]
- [A] GB 627119 A 19490728 - BATAAFSCHE PETROLEUM MATTSCHAP
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0401493 A2 19901212; EP 0401493 A3 19920226; EP 0401493 B1 19941019; AT E113023 T1 19941115; CA 2014945 A1 19901207; CA 2014945 C 19950613; DE 69013401 D1 19941124; ES 2062154 T3 19941216; JP H0324024 A 19910201; JP H0791203 B2 19951004; US 4948479 A 19900814
DOCDB simple family (application)
EP 90107089 A 19900412; AT 90107089 T 19900412; CA 2014945 A 19900419; DE 69013401 T 19900412; ES 90107089 T 19900412; JP 9780990 A 19900416; US 36273089 A 19890607